[PRQ#46338] Deletion Request for python-backports.weakref

MarsSeed [1] filed a deletion request for python-backports.weakref [2]: Unneeded Python2/Python3 backports package from 2017. Nothing depends on it. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-backports.weakref/